Bookbinder.



No. 892,200. v VPATENTED JUNE 30, 1908.

' J. WEISBRODl BOUKBINDER.

APPLIOATIoN FILED un. z2, 190e.

UNITED STATES PATENT OFFICE.

JOHN WEISBROD, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO CHARLES O.BOYER, OF BROOKLYN, NEW YORK, AND ONE-HALF TO FERDINAND KUSTER, OFNEWYORK, N. Y.

BOOKBINDER.

Application filed January 22, 1908.

Specification of Letters Patent.

Patented June 30, 1908.

Serial No'. 412,054.

T0 all 'whom it may concern:

Be it known that l, JOHN iVnisnuon, a citizen of the United States,residing at New York city, Manhattan borough, county and State of NewYork, have invented certain new and useful Improvements in Boekbinders,of which the following is a clear, full, and exact description.

This invention relates to bookebinders, one of the objects being toprovide a device which is simple in construction and effective inoperation.

A further object of my improved bookbinder is to provide a laterallyadjustable frame whereby a book of any desired thickness can be built upby adding more leaves. The elements which go to form my improvedbook-binder are constituted to obviate the necessity of perforating theleaves of the book and yet to hold the leaves firmlyin position.

Further advantages will be hereinafter presented.

To these and other ends which will hereinafter appear, my inventioncomprises the novel features of improvement and combination andarrangement of parts which I will now proceed to describe and finallyclaim, reference being had to the accompanying drawings, forming parthereof, wherein# Figure 1 illustrates a perspective view of my improvedbook-binder, the leaves being removed; Fig. 2 is a detail top-plan viewof my improved book-binder, the cover being removed and a portion of theleaves shown; Fig. 3 is a detail sectional view, taken on a line a-a inFig. 2, and shows the retaining bars for the leaves in position, Fig. 4is a erspective view, broken on", of the retaining bar and shows themanner of retainingr the leaves; Fig. 5 is an enlarged cross-sectionaldetail view of the locking-bar and spring carried thereby; Fig. 6 is anenlarged fragmen tary sectional detail plan view of my improvedadjustable frame.

Referring now to the drawings, partieularly to Fig. 1, my improvedbook-binder comprises the end-members 1 and 2, said end members beingcomposed of the stationary members 8 and 4 (Fig. 2) upon which aremounted laterally adjustable plates 5, 6, 7, and 8. A separator 9, ofwood or other material to which the stationary members 3 and 4 aresuitably secured, determines the Width of the book. The end members 1and 2 and the plates 5, (i, 7 and S thereon, together with the separator9, form the frame or binder for the book. A cover 10 is secured to theseparator in the usual manner.

As shown in Fig. 6, the adjustable plates 5, (i, 7 and 8 are secured tothe stationary members 3 and 4 by the thumb-nuts 11, which engagethreaded studs 12 carried by the members 3 and 4. The plates 5, 6, 7 and8 are provided with slots 13 through which the studs 12 pass. To steadythe plates 5, (i, 7 and S, I have, in this instance, employed steadyingpins 14, which project from the members 3 and 4 and enter the slots 13(see Fig. 1). To the upper end of the plate 5 I pivotally mount alocking-bar 15, as at 16. Near the bottom of the under plates 6 and S, Isecure the stationary reach bar 17 (sce Fig. 3). The retaining elementsfor the leves comprise the bars 18, around which are folded a pluralityof leaves 19 to form the book (see Fig. 4), each folded sheet formingtwo leaves. I can use as many of these groups of leaves as desired.After having made as many groups of leaves as I desire, and in themanner described, I place the groups one upon the other between the endframes 1 and 2, the adjustable plates 5, 6, 7 and S being provided withan inwardly projecting flange 20 which acts to keep the bars 18 fromslipping outwardly longitudinally of the book. The bars 1S are a littleshorter than the distance between the end frames 1 and 2 which permitsof the easy insertion of the bars. The di'll'erenee between the lengthof the said bars and the width between the members 1 and 2 will not beenough to permit of side lashing of the bars 1S and groups of leavesthereon. After having inserted the bars, the locking-bar 15 is closedand a pin 21 is, in this instance, used to hold the bar 15 closed asshown in Figs. 1 and 2.

To hold the groups down, and to press them firmly together, I mount onthe underside of the locking-bar 15 an auxiliary locking element,comprising a leaf-spring 22, which, when the bar 15 is locked, pressesupon the top group of leaves. The spring 22 also compensates for thespace of a group, should said group be removed for any purpose. In otherwords I am able to take out a group of leaves or to add a group withoutaffecting the stability of the book, as the said spring 15 willcompress, if I add a group, or expand if a group is removed. Therefore,

under these,y two circumstances, the said spring will always act toiirmly press the groups downward and together.

If I desire to increase the capacity of the binder to an extent-greaterthan can be accomplished by adding one or two groups of leaves as hasbeen described, I loosen the thumb-nuts 11 and draw the adjustableplates and 7 upwardly and push the plates 6 and 8 downwardly to thedesired extent, and then tighten the thumb-nuts 1 1, whereby the endframes 1 and 3 are greatly increased in lateral width.v By this means Iam able to add several more groups of leaves to the book. The flexibleportion 22a of the cover 10 permits the cover to accommodate itself tothe increased thickness of the book.

Having now described my invention, what I claim and desire to secure byLetters Patent is:

1. In a book-binder, a binding-frame provided at the ends thereof withlaterally adjustable members, and bars carried by said members, one ofsaid bars constituting a locking element.

2. In a book-binder, a binding-frame, laterally adjustable end memberscarried by said frame, a plurality of independent removable retainingbars, adapted to hold leaves, carried by said frame, and means adaptedto hold said bars and the leaves earried thereby, in said frame.

3. A book-binder, comprising a frame, composed of a separator, endmembers carried by said separator, laterally adjustable plates carriedby said end members, a reachbar carried by the lower plates, a pivotallymounted locking-bar carried by the upper plates, andan auxiliary lockingelement carried by said looking-bar.

Signed at New York city, vthis day of January 1908.

JOI-IN WEISBROD. l/Vitnesses:

EDWARD A. JARVIs, MILDRED VrArjLs

